University of Maryland Extension


Smilax rotundifolia

smilax (Greenbrier)

Life cycle: woody vine. This is a native vine.
Growth habit: can form impenetrable thickets, climbs by tendrils attached to the petiole; stems bright green with sharp prickles; leaves alternate, rounded to heart-shaped, shiny bright green with smooth margins and parallel veins
Reproduction: plants spread slowly by vegetative growth and by seeds; greenish flowers precede bluish black berries
Conditions that favor growth: commonly found along roadsides, open woods, and edges of moist swampy areas
Cultural control: manual removal of branches down to ground and keep cut to maintain growth

Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2021. Web Accessibility

University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. If you need a reasonable accommodation to participate in any event or activity, please contact your local University of Maryland Extension Office.